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ThreadACME

ThreadACME details trapezoidal ACME thread callouts commonly used in power transmission applications. In addition to the shared thread attributes—label, quantity, nominal diameter, spacing (pitch and threads per inch), handedness, and depth—it records the ACME size and series designations. By structuring ACME data you can ensure lead screws or jackscrews are manufactured to the correct specification, compatible with off-the-shelf nuts, and supported by appropriate quality checks and inspection criteria. The object also captures confidence so rare thread variants can receive extra scrutiny.

Bases: Thread

Represents an ACME thread.

PARAMETER DESCRIPTION
reference_id

Reference ID to identify the object.

TYPE: int

label

A short description of the feature in a human-readable format.

TYPE: str

confidence

Confidence in the feature extraction or interpretation.

TYPE: Confidence | None

quantity

The number of threads or instances. Must be non-negative.

TYPE: Decimal

diameter

The diameter of the thread, including nominal size and tolerances.

TYPE: Size

spacing

The spacing of the thread, defining the distance between thread crests.

TYPE: ThreadSpacing | None

handedness

The direction of the thread, such as LEFT or RIGHT.

TYPE: ThreadHandedness

depth

The length of the threaded feature, including nominal size and tolerances.

TYPE: Depth | None DEFAULT: None

thread_type

TYPE: Literal[<ThreadType.ACME: 'ACME'>] DEFAULT: <ThreadType.ACME: 'ACME'>

acme_size

The nominal size of the ACME thread.

TYPE: str

acme_series

The series designation of the ACME thread.

TYPE: str

Source code in werk24/models/v2/models.py
class ThreadACME(Thread):
    """
    Represents an ACME thread.
    """

    thread_type: Literal[ThreadType.ACME] = ThreadType.ACME
    acme_size: str = Field(
        ...,
        description="The nominal size of the ACME thread.",
        examples=["1/4", "1/2"],
    )
    acme_series: str = Field(
        ...,
        description="The series designation of the ACME thread.",
        examples=["ACME", "STUB ACME"],
    )